A 50-Year-Old Woman Has a Renal Blood Flow of 1000

A 50-year-old woman has a renal blood flow of 1000 mL/min and hematocrit of 50%. Her arterial pressure is 120 mm Hg and her renal venous pressure is 20 mm Hg. She also has a plasma colloid osmotic pressure of 25 mmHg. What is the total renal vascular resistance (in mm Hg/mL/min) in this woman?

A) 0.10
B) 0.20
C) 0.50
D) 1.00
E) 1.50